It's the perfect time for a portable version pf last generation's best reviewed RPG.
The Japanese are buying the New 3DS like crazy, Shulk is in Smash Bros., and there're a new Xenoblade coming out next year that needs all the exposure and hype it can get to have any hopes of doing better than its predecessor.
With that it mind, I don't think there will be an influx of Wii titles coming to the 3DS, though I see it as likely that there will be more. The Wii had some gems later in its life, that all endured miserable sales.